Complex Multiply Accumulate Cells for the Square Kilometre Array Correlators

Date Issued
2018
Author(s)
Kamp, William
•
Abel, Norbert
•
DOI
Abstract
This paper presents FPGA designs and design optimisations for the complex multiply accumulate cells (CMACs) that are the basic building block of the Square Kilometre Array (SKA) correlators. The CMACs use a novel signal encoding technique to pack a complex multiplication into a single integer multiplication. This halves the number of hard multiplier blocks required to implement the SKA correlators. Designs are presented for use in both the Mid and Low Correlator Beamformers (CBF), which employ Intel Stratix10 and Xilinx UltraScale + FPGAs respectively. Further optimisations enable a reduction in the correlator resources by approximately 40%. These optimisations allow Mid.CBF and Low.CBF to put all required functionality into a minimal number of FPGAs, thereby saving cost and most importantly power.
Coverage
2018 International Conference on ReConFigurable Computing and FPGAs (ReConFig)
All editors
Andrews, David; Cumplido, René; Feregrino, Claudia; Stroobandt, Dirk
Conferenece
2018 International Conference on ReConFigurable Computing and FPGAs (ReConFig)
Conferenece place
Cancun, Mexico
Conferenece date
3-5 December, 2018
Uri
Url
Rights
restricted
File(s)
Loading...
Thumbnail Image
Name

Complex_Multiply_Accumulate_Cells_for_the_Square_Kilometre_Array_Correlators.pdf

Description
[Administrators only]
Size

339.92 KB

Format

Adobe PDF

Checksum (MD5)

f15e35887cfc00c6958b62fe3dcdea9f